I can't see it being intentional either. If one was defective and caused an accident... They wouldn't risk it.

And my 03 has done far more miles than the 06, and I re-used the orginal one when I got the TBS wheel. And that's still fine.
Yet I'm on the second one on the 06...and I think that's on the way out as well. (though it's been 2 months since I rode it.) I can't see it being the rotors at fault. Not to go one after the other like that. Don't know what it is mind you...

Gina 03 America - Pretty stock - except the TBS wheel... 06 America - missing, presumed in bits. With it's TBS wheel... 09 America - It's very blue....